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如何解决“ sign_and_send_pubkey：签名失败：代理拒绝操作”？
使用SSH密钥配置新的Digital Ocean Droplet。当我运行时ssh-copy-id，我得到的是： ssh-copy-id user@012.345.67.89 /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys sign_and_send_pubkey: signing failed: agent refused operation …